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Machine springs – precision components for mechanical systems

Machine springs are critical components in mechanical and engine systems. They store, release or balance mechanical energy and are essential in applications ranging from automotive engines to industrial machinery and marine equipment. Whether as a pressure spring or a technical spring for dynamic loads, high-quality machine springs help maintain system reliability and performance stability.

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RETAINING SPRING - 81976400183 suitable for MAN D engines

RETAINING SPRING - 81976400183 suitable for MAN D engines

Precise Retaining Spring for Your ApplicationsDiscover the retaining spring marked with the reference number 81976400183. This excellent product fits MAN D engines and belongs to the category of springs. Weighing only 0.001 kg, it impresses with its lightweight design and precise fit, which are crucial for the functionality of your engines.

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LEAF SPRING - 81976400172 suitable for MAN D engines

LEAF SPRING - 81976400172 suitable for MAN D engines

First-Class Leaf Spring Suitable for MAN D EnginesDiscover our first-class leaf spring (comparison number: 81976400172), specifically designed for optimal use in MAN D engines. Weighing just 0.001 kg, this product is easy to handle and ideally suited for marine and stationary applications. This leaf spring belongs to the product group "Springs" and ensures long-lasting performance.OEM Replacement Parts in Manufacturer QualityOur leaf spring is an OEM replacement part that meets the highest quality standards. The comparison number 81976400172 ensures that this replacement part is perfectly compatible and supports the functionality of your engines. Rely on manufacturer quality to ensure your machines always operate efficiently.

Sale price: €3.00Regular price:€3.33(10% saved)
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LEAF SPRING - 81976400158 suitable for MAN D engines

LEAF SPRING - 81976400158 suitable for MAN D engines

Excellent Leaf Spring for MAN D EnginesDiscover the leaf spring with the comparison number 81976400158, a reliable OEM replacement part specifically designed to optimally support your engines. This leaf spring is suitable for MAN D engines and belongs to the group of springs. Weighing only 0.02 kg, it offers the ideal combination of lightness and performance.Quality that Inspires ConfidenceQuality is our top priority. Every product, including the leaf spring, is carefully inspected before delivery to ensure it meets the strict market requirements. With over 25 years of experience in the industry, you can rely on all our OEM replacement parts, including the comparison number 81976400158, to provide maximum reliability.

LEAF SPRING - 81976400153 suitable for MAN D engines

LEAF SPRING - 81976400153 suitable for MAN D engines

LEAF SPRING with the comparison number 81976400153 suitable for MAN D engines

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LEAF SPRING - 81976400151 suitable for MAN D engines

LEAF SPRING - 81976400151 suitable for MAN D engines

Reliable Leaf Spring for Demanding ApplicationsDiscover the leaf spring, a product with the comparison number 81976400151, specifically designed for use in engines. This component is suitable for MAN D engines and ensures that your machines operate smoothly in marine and stationary applications. Weighing only 0.004 kg, this OEM spare part is lightweight and optimally integrates.

Sale price: €3.37Regular price:€3.74(10% saved)
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LEAF SPRING - 81976400142 suitable for MAN D engines

LEAF SPRING - 81976400142 suitable for MAN D engines

Robust Leaf Spring for Your EnginesDiscover the leaf spring with the comparison number 81976400142, an essential OEM spare part for your engines. This product is specially designed to provide optimal performance and stability. With this leaf spring, you can ensure that your applications operate efficiently.

Sale price: €38.96Regular price:€43.29(10% saved)
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SPRING - 81976400132 suitable for MAN D engines

SPRING - 81976400132 suitable for MAN D engines

Spring with Comparison Number 81976400132Discover the spring with the comparison number 81976400132, a reliable OEM spare part specifically designed for use in engines. This spring offers optimal functionality and is particularly durable, allowing you to rely on the efficiency of your engines. Weighing just 0.007 kg, it is ideally suited for the needs of your applications.Precision and Reliability of the OEM Spare PartThe product is compatible with MAN D engines and is characterized by its high processing quality. As a comparable OEM spare part, the spring meets the stringent requirements placed on components in diesel and gas engines. With the comparison number 81976400132, you are acquiring a functional spare part that is suitable for a wide range of applications.

LEAF SPRING - 81976400116 suitable for MAN D engines

LEAF SPRING - 81976400116 suitable for MAN D engines

High-performance Leaf Spring for Engine NeedsDiscover our product, the leaf spring with the comparison number 81976400116. This OEM replacement part is an essential component that ensures the highest precision and stability. The leaf spring is suitable for MAN D engines and delivers outstanding performance in robust operation.Precise Fit for MAN D EnginesThe leaf spring with the comparison number 81976400116 weighs 1.168 kg and provides optimal accuracy that is crucial for the functioning of your engines. As an OEM replacement part, it meets strict quality standards, which are particularly important for professional applications in marine and stationary use.

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RETAINING SPRING - 81976400101 suitable for MAN D engines

RETAINING SPRING - 81976400101 suitable for MAN D engines

Retaining spring for MAN D enginesDiscover our retaining spring (comparison number: 81976400101), specifically designed for MAN D engines. This product from the category springs is an essential OEM replacement part that ensures an excellent fit and contributes to the optimal operation of your diesel or gas engine. Weighing 0.18 kg, the retaining spring offers a robust construction and durability, which is essential in demanding applications.

Sale price: €27.82Regular price:€30.91(10% saved)
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LEAF SPRING - 81976400090 suitable for MAN D engines

LEAF SPRING - 81976400090 suitable for MAN D engines

High-Performance Leaf Spring for EnginesDiscover the leaf spring with the comparison number 81976400090, an essential OEM replacement part specifically designed for use in engines. This leaf spring offers lasting performance and reliability necessary for engine applications.

LEAF SPRING - 81976400088 suitable for MAN D engines

LEAF SPRING - 81976400088 suitable for MAN D engines

Premium Selection – Leaf Spring 81976400088Discover the powerful leaf spring with the comparison number 81976400088, an essential OEM spare part specifically designed for MAN D engines. At MOPA Motorparts, we place great emphasis on adhering to strict quality standards to ensure that our products can be successfully utilized in demanding applications.Materials and Weight – Stability Meets FunctionalityWeighing in at 2.3 kg, this spare part impresses with its high-quality construction that is suitable for use in various engines. The leaf spring provides stability and reliability as it is perfectly fitting for MAN D engines. Rely on products that offer you durability and safety.

LEAF SPRING - 81976400071 suitable for MAN D engines

LEAF SPRING - 81976400071 suitable for MAN D engines

Excellent Leaf Spring for Your Needs Our leaf spring, comparison number 81976400071, is an outstanding OEM spare part known for its robust construction. Weighing 1.7 kg, this product offers reliable performance specifically designed for engines in the marine and stationary sectors. This spare part is essential for the consistent performance of your engines.Quality Suitable for MAN D Engines The product is suitable for MAN D engines and meets the highest industry standards. As an OEM spare part, this leaf spring ensures a perfect fit and longevity. Your requirements for quality and reliability are easily met with this top-notch component.

LEAF SPRING - 81976400031 suitable for MAN D engines

LEAF SPRING - 81976400031 suitable for MAN D engines

Discover the Leaf Spring, Part Number 81976400031The leaf spring with the part number 81976400031 is an outstanding OEM spare part specifically designed to harmonize optimally with engines. This strength makes it an indispensable component for all who rely on quality and reliability. It is precisely tailored to the requirements of engines, offering perfect fitting and performance.

LEAF SPRING - 81976400021 suitable for MAN D engines

LEAF SPRING - 81976400021 suitable for MAN D engines

Premium Leaf Spring for Your EnginesDiscover the leaf spring compatible with MAN D engines, with the comparison number 81976400021. This premium OEM spare part offers you the perfect combination of precision and durability, ideal for use in maritime and stationary applications. Weighing only 0.06 kg, the leaf spring impresses with its robustness and efficiency.

LEAF SPRING - 81976400012 suitable for MAN D engines

LEAF SPRING - 81976400012 suitable for MAN D engines

Precise Spare Part: Comparison Number 81976400012Experience the top-quality product with comparison number 81976400012, which is essential for your engine requirements. This specific leaf spring offers perfect performance for application scenarios in marine and stationary use. It weighs only 0.107 kg, ensuring an excellent balance between stability and functionality.Optimal Performance: Leaf Spring Suitable for MAN DOur leaf spring is ideally suited to optimize the performance of your engines. It is compatible with MAN D engines and represents an essential OEM spare part. All our products undergo strict internal controls to ensure they meet the highest possible quality standards and satisfy the demands of even the most challenging applications.

LEAF SPRING - 81976400004 suitable for MAN D engines

LEAF SPRING - 81976400004 suitable for MAN D engines

Precision Product: Leaf Spring with Comparison Number 81976400004Discover the leaf spring with comparison number 81976400004, a top-quality OEM spare part designed to meet the demands of engines. Weighing only 0.05 kg, this precisely manufactured leaf spring offers stability and durability.

LEAF SPRING - 81976400002 suitable for MAN D engines

LEAF SPRING - 81976400002 suitable for MAN D engines

Reliable OEM Spare Part: Leaf SpringDiscover our leaf spring, comparison number 81976400002, specifically designed for MAN D engines. This product ensures efficient and stable performance for your engines. In marine or stationary applications, this OEM spare part provides the reliability you need to operate your machines optimally.Lightweight with Excellent PerformanceWeighing only 0.001 kg, the leaf spring offers an excellent combination of lightness and robustness. It is perfectly suited for the specific requirements of MAN D engines. Trust in our OEM spare parts that are not only durable but also precisely tailored to the needs of your engines.

LEAF SPRING - 81976400001 suitable for MAN D engines

LEAF SPRING - 81976400001 suitable for MAN D engines

Optimal Leaf Spring for Your PerformanceDiscover the leaf spring with the comparison number 81976400001, an essential OEM replacement part specifically designed to optimize engine components. This leaf spring has been manufactured for the group of springs and offers excellent quality that you can expect from an OEM replacement part. Weighing only 0.014 kg, this product is perfectly suited for stationary use.

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SPRING - 81976300202 suitable for MAN D engines

SPRING - 81976300202 suitable for MAN D engines

Robust Spring for Your Engine SolutionsDiscover the spring with the comparison number 81976300202, which is ideally suited for your requirements. This OEM replacement part impresses with quality and durability, making it perfect for use in various engine applications.

Sale price: €79.15Regular price:€87.95(10% saved)
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SPRING - 81976300201 suitable for MAN D engines

SPRING - 81976300201 suitable for MAN D engines

Exquisite Spring for Your Applications Discover our exquisite Spring with the comparison number 81976300201, suitable for MAN D engines. This OEM replacement part ensures optimal efficiency and durability in your application. Rely on the quality of this Spring to maximize the performance of your engines.

Sale price: €71.96Regular price:€79.95(10% saved)
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SPRING - 81976300200 suitable for MAN D engines

SPRING - 81976300200 suitable for MAN D engines

Spring Suitable for MAN D EnginesDiscover the Spring with the comparison number 81976300200, an essential product used in both marine and stationary applications in engines. This Spring is a reliable component that ensures optimal performance for your engines.Quality through OEM Spare PartsOur spare parts, such as the Spring suitable for MAN D, come directly from the Equipment Manufacturer (OEM). These OEM spare parts offer the highest quality and are fully compatible with MAN D engines, unlike often inferior aftermarket products.

Sale price: €76.27Regular price:€84.75(10% saved)
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SPRING - 81976300104 suitable for MAN D engines

SPRING - 81976300104 suitable for MAN D engines

Precise Spring for Engine Projects Discover the spring with the comparison number 81976300104, designed for highest demands. This product is suitable for MAN D engines and belongs to the category of springs. Weighing only 0.03 kg, it is an essential OEM replacement part that sustainably supports the reliability and efficiency of your engines.Optimal Fit for MAN D Engines Our spring is an excellent OEM replacement part that offers an exact fit. It is specifically suitable for applications requiring performance from MAN D engines. Trust our many years of experience in the distribution of engine parts to ensure the optimal performance of your engines.

Sale price: €83.95Regular price:€93.28(10% saved)
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SPRING - 81976300103 suitable for MAN D engines

SPRING - 81976300103 suitable for MAN D engines

Precise Spring as an Essential Spare PartDiscover our outstanding product, the spring with the comparison number 81976300103. This OEM spare part is suitable for MAN D engines and offers optimal performance. Weighing only 0.145 kg, this spring is an essential component that should not be missing from any engine maintenance.Quality that ConvinceOur spring is suitable for MAN D engines and meets the strict requirements of the OEM standard. By using the best materials, it is ensured that this OEM spare part is equally effective and durable under various operating conditions. This way, your engines remain efficient and powerful.

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TENSION SPRING - 81976106015 suitable for MAN D engines

TENSION SPRING - 81976106015 suitable for MAN D engines

Reliable Tension Spring for MAN D EnginesDiscover the tension spring with the reference number 81976106015, specifically designed for MAN D engines. This product offers outstanding performance and ensures that your engines operate reliably.

Sale price: €118.01Regular price:€131.12(10% saved)
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Function and benefits

Machine springs absorb and compensate forces in motion and pressure systems. In engines, engine springs play a vital role in valve timing, vibration damping and tension control. Using the right spring engine configuration ensures:

  • Consistent force distribution and mechanical balance
  • Vibration reduction in dynamic systems
  • Longer lifespan of mechanical assemblies through controlled stress absorption

In marine applications, marine springs must also withstand corrosion and dynamic pressure changes in saltwater environments.

Types and applications of machine springs

There are many types of machine springs, including compression springs, tension springs, torsion springs and disc springs. Depending on the function, technical springs are tailored in size, material and force characteristics. The pressure spring is one of the most common forms and is used to generate resistance or restore position in systems.

In the spring engine context, applications include valve return mechanisms, clutch systems, tensioners and control linkages. The engine spring valve in particular is critical for precise valve control in combustion engines.

Material selection and durability

Machine springs are typically made from high-grade spring steel, stainless steel or special alloys with high fatigue resistance. The selection depends on temperature, load cycles, corrosion exposure and required elasticity. In a marine spring environment, surface coatings or non-corrosive materials such as phosphated or shot-peened spring steel are standard.

All technical springs must meet strict tolerances to ensure predictable load behavior and long-term performance – especially when used in sensitive applications like engine springs or mechanical valves.

Replacement and availability

Machine springs are subject to wear, stress fatigue and corrosion. Regular inspection and preventive replacement are crucial, especially for parts under high mechanical load. We offer a wide range of OEM-machine springs suitable for MTU, Deutz, MAN, Volvo Penta, and MWM engines.

Whether you're sourcing an engine spring valve, a technical pressure spring or a marine spring for critical offshore systems – our stock ensures fast availability and professional-grade reliability.

Springs for industrial and marine engines – suitable for MTU, Deutz, MAN, Volvo Penta and MWM – replacement parts

FAQ

What is machine springs?
Machine springs are mechanical components that store and release energy through deformation. They are used in engines, machines, and technical assemblies to manage motion, absorb shock, and maintain tension or compression in a system. Common types include compression, tension and torsion springs.

How do machine springs work?
Machine springs work by compressing, extending or twisting under load, then returning to their original shape. In an engine, for example, engine springs help open and close valves (engine spring valve), maintain belt tension, or absorb vibration. A pressure spring resists force to hold components in position or restore them to a starting point when the load is released.

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